package com.itheima.patterns.structuralpattern.bridge;

//抽象的操作系统类（抽象化角色）
public abstract class OperatingSystem {
    
    //声明VideoFile变量
    protected VideoFile videoFile;
    
    public OperatingSystem(VideoFile videoFile) {
        this.videoFile = videoFile;
    }
    
    public abstract void play(String fileNamw);
}